User manual

Section 5: Troubleshooting
TVC-500 Operation Manual 5-3
020-100539-01 Rev. 1 (08-2010)
Red Power LED blinks
two times, once every sec-
ond, followed by a two-
second pause. Two beeps.
CPU thermal protection
activated by either of the
following methods:
• A fan might be
blocked or not turning.
• The heatsink and fan
assembly is not
properly attached to
the CPU.
CAUTION: Internal components might be powered even
when the workstation is OFF. To prevent damage, discon-
nect the workstation power cord before you remove a com-
ponent.
1. Ensure that the workstation air vents are not blocked and
the cooling fan is running.
2. Open the access panel, press power button, and verify
that the CPU fan is spinning. If the CPU fan is not
spinning, make sure the fan cable is plugged into the
system board header. Ensure the fan is fully and properly
seated or installed.
3. If fan is plugged in and seated properly, but is not
spinning, the problem might be in the CPU fan. Contact
Christie for assistance.
4. Verify that the fan assembly is properly attached. If
problems persist, there might be a problem with the CPU
heatsink. Contact Christie for assistance.
Red Power LED blinks
three times, once every
second, followed by a
two-second pause. Three
beeps.
CPU not installed (not an
indicator of bad CPU).
1. Verify that the CPU is present.
2. Reseat the CPU.
Table 5.2 Diagnostic LED and Audible Codes
Activity Possible Cause Recommended Action